KR19980703787A - Cleaning Emulsion - Google Patents

Abstract

The present invention relates to compositions for personal cleansing in the form of oil-in-water emulsions. These emulsions have the characteristic of breaking upon contact with the skin to provide improved cleansing efficacy.

Description

Cleaning Emulsion

Compositions for personal cleansing to remove dirt, oils and cosmetics from the skin are currently widely used and are commercially available in various forms such as creams, lotions, gels, bars and astringents. Cold cream cleaners are hundreds of years old. Some of the earlier compositions contained animal fats or vegetable oils mixed with water and perfumed oils. The fat or oil components in the earlier formulations are useful for removing oily dirt from the skin, providing a lighter, smoother touch to the water components and making the product easier to remove. These initial compositions are unstable because the fat or oil component is easily separated from the water component. In addition, these initial compositions are rancid quickly and therefore have a short lifespan. These initial compositions were eventually improved by adding emulsifiers, stabilizers, antioxidants and preservatives. In addition, surfactants were added to the composition to further improve cleaning power.

A cleaning composition in the form of an oil-in-water emulsion is preferable to a water-in-oil emulsion, since the former is generally lighter than the latter and has a non- oily cleaning feeling. However, effective personal wash compositions are difficult to blend into oil-in-water emulsions. Oil-in-water emulsion cleaners are typically emulsified oil and water phases using an emulsifier for storage stability. If the oil phase is too tightly fixed and does not dissociate during the cleaning process and cannot be used, the stability can actually reduce the cleaning power of the emulsion. In addition, surfactants added to improve the cleaning power of emulsion cleaners may actually reduce the cleaning power, since the surfactant may also act as an emulsifier, making both the surfactant and the oil phase less useful for cleaning. One solution to this problem is to develop an unemulsified two-phase cleaner. These cleaners are not attractive in terms of aesthetics, ie appearance and feel, and have the disadvantage of shaking the product violently before use.

U.S. Patent No. 5,004,598, issued to Lochhead et al. On April 2, 1991, discloses a mineral oil containing an oil-in-water emulsion containing a cross-linked long chain polymer that breaks down upon contact with human skin. have. However, this document does not teach a method for preventing surfactant emulsification that may adversely affect the performance of the cleaning form emulsions. The compositions of the present invention comprise clean, non-emulsifiable surfactants having specific HLB (hydrophilic-lipophilic equilibrium) requirements as described below.

US Patent No. 5,011,681, issued to Ciotti et al. On April 30, 1991, includes a surfactant having at least about 10 HLB, a polyalphaolefin, and a carboxylic acid copolymer having a C ₁₀ -C ₃₀ substituent. An oil-in-water emulsion for removing cosmetics is disclosed. However, this document does not teach that no cleaning emulsion can be obtained when it does not contain polyalphaolefin. In fact, the cleaning emulsions of the invention are obtained regardless of the polyalphaolefins and should not contain these components.

The composition of the present invention uses a carboxylic acid copolymer as an emulsifier as described above. This emulsifier provides sufficient stability for product storage but allows the product to demulsify or destroy when the product comes into contact with the skin. In addition, these compositions utilize cleaning, non-emulsifying surfactants to provide cleaning improvements without disturbing oil phase dissociation during the cleaning process.

Accordingly, it is an object of the present invention to provide compositions useful for personal cleansing.

Another object of the present invention is to provide an oil-in-water emulsion that is stable and demulsified when contacted with the skin.

It is another object of the present invention to provide a personal cleaning method.

The above and other objects of the present invention will become apparent from the following description.

[Summary of invention]

The invention (a) acrylic acid, salts of acrylic acid, C ₁ -C ₄ alkyl-substituted acrylic acid, C ₁ -C ₄ alkyl-salts, acrylic acid, substituted acrylic acid C ₁ -C ₄ alkyl esters, C ₁ -C ₄ C ₁ -C ₄ alkyl esters of alkyl-substituted acrylic acids, monomers selected from the group consisting of maleic anhydride and mixtures thereof, and C ₁₀ -C ₃₀ alkyl esters of acrylic acid, C ₁ -C ₄ alkyl-substituted acrylic acids About 0.01 to about 5 weight percent of a copolymer comprising a monomer selected from the group consisting of C ₁₀ -C ₃₀ alkyl esters and mixtures thereof, (b) about 0.05 to about non-emulsifiable cleaning surfactant having an HLB greater than about 11 20 wt.%, (c) a mineral oil, petrolatum, C ₇ -C ₄₀ branched chain hydrocarbons, C ₁ -C ₃₀ carboxylic acid of the C ₁ -C ₃₀ alcohol esters, C ₁ -C ₃₀ carboxylic acid of monoglycerides, C ₁ -C _{30-carboxylic} acid of the diglycerides, C ₁ triglycerides, C ₁ -C ₃₀ -C ₃₀ carboxylic acid of Of acid glycol monoesters, C ₁ -C ₃₀ carboxylic acid esters of ethylene glycol, C ₁ -C ₃₀ carboxylic acids, propylene glycol monoesters, C ₁ captive propylene glycol diesters, C ₁ -C ₃₀ -C ₃₀ carboxylic acid of Sugar esters of carboxylic acids, sugar polyesters of C ₁ -C ₃₀ carboxylic acids, polydialkylsiloxanes, polydiarylsiloxanes, polyacrylicsiloxanes, cyclomethicones having 3 to 9 silicon atoms, vegetable oils, vegetable curing oils, poly About 0.5 to about 40 weight oil selected from the group consisting of propylene glycol, polypropylene glycol C ₄ -C ₂₀ alkyl ethers, C ₁ -C ₂₀ carboxylic acid esters of propylene glycol, di-C ₈ -C ₃₀ alkyl ethers, and mixtures thereof Personal cleansing composition in the form of an oil-in-water emulsion, containing no more than 10 carbon atoms, 1-alkene, comprising% and (d) about 20 to about 99.44% by weight of water. It's about water.

The present invention also relates to a personal cleaning method using the composition.

Unless indicated otherwise, all percentages and ratios used herein are based on the weight of the total composition and all measurements were made at 25 ° C. or room temperature. Unless indicated otherwise, all weight percents are based on the weight of the active ingredient. The present invention may comprise, consist of, or consist essentially of any of the ingredients and additional ingredients described herein.

The present invention relates to a personal wash composition in the form of an oil-in-water emulsion. This emulsion is stable during storage, but it is characterized by demulsification, ie destruction, upon contact with the skin, and dissociates the oil phase for cleaning purposes. Such compositions have the advantage of providing improved cleansing efficacy without irritating the skin or leaving the skin feeling tight or irritated.

The oil-in-water emulsion composition of the present invention is useful for personal cleansing, especially for facial and neck areas.

These compositions are demulsified, ie destroyed or separated when contacted with the skin. Without being bound by theory, it is known that electrolytes present in the skin interact with the carboxylic acid copolymer to demulsify the emulsion, thereby releasing the oily phase to dissolve oily dirt on the skin to aid in cleaning. In addition, since the emulsion contains a non-emulsifiable cleaning surfactant component, additional cleaning power is obtained therefrom.

The composition of the present invention does not contain polymerized 1-alkenes having 10 or more carbon atoms, which means that the composition does not contain a significant amount, i. Polymerized 1-alkenes having 10 or more carbon atoms are polymers of alkenes such as 1-decene, 1-undecane, 1-dodecane, 1-tridecane and the like. An example of such a material is poly (1-decene).

The emulsion composition of the present invention may be in the form of a rinse-off composition that is distinct from a leave-on or water-less cleaner. Rinsing means using the composition in the cleaning process so that the composition is eventually rinsed or washed away from the skin with water to complete the cleaning process. The emulsion composition may also be in the form of a wiping composition that is distinct from the residual composition. Such wiping compositions are typically removed by wiping using devices such as cotton balls, cotton pads, tissues or towels, and the like.

The term pharmaceutically acceptable used in the present invention is such that the composition, topical carrier and components described above are sufficiently high in purity and suitable for use in contact with human skin without severe toxicity, incompatibility, instability and allergic reactions. It means.

The term physical stability, as used herein, means that the composition of the present invention exhibits physical properties such as viscosity retention and resistance to phase separation. For example, the compositions of the present invention typically must maintain their physical stability at 40 ° C. for at least 3 months.

[Copolymer]

The compositions of the present invention the first monomer (acrylic acid, salts of acrylic acid, C ₁ -C ₄ alkyl-substituted acrylic acid, C ₁ -C ₄ alkyl-salts, acrylic acid, substituted acrylic acid C ₁ -C ₄ alkyl esters, C C ₁ -C ₄ alkyl esters of _1- C ₄ alkyl-substituted acrylic acid, maleic anhydride and mixtures thereof and a second monomer (C ₁₀ -C ₃₀ alkyl ester of acrylic acid, C _1- From about 0.01 to about 5% by weight, preferably from about 0.05 to about 0.45) of a C ₄ alkyl-substituted acrylic acid, a long chain ester monomer selected from the group consisting of C ₁₀ -C ₃₀ alkyl esters and mixtures thereof %, More preferably about 0.10 to about 0.50%. The acid salts described in the sentence are selected from the group consisting of alkali metal salts, alkaline metal salts, ammonium salts, mono-, di-, tri- and tetra-alkyl ammonium salts. Salts of C ₁ -C ₄ alkyl-substituted acrylic acid described in the first sentence of this paragraph include methacrylic acid, etaacrylic acid, and the like, wherein the alkyl substituent may be at the C2 or C3 position of the acid molecule. The C ₁ -C ₄ alkyl esters described in the first sentence of this paragraph may include methyl esters and ethyl esters and branched C ₃ -C ₄ esters.

Preferably, the copolymer further comprises a polyhydric alcohol polyalkenyl polyether crosslinker which is crosslinked and contains one or more elkenyl ether groups per molecule, wherein the parent polyhydric alcohol comprises at least three carbon atoms and It contains at least three hydroxy groups. Preferred crosslinkers are selected from the group consisting of allyl ethers of sucrose, allyl ethers of pentaerythritol and mixtures thereof. The polymers useful in the present invention are described in US Pat. No. 5,087,445 to Haffey et al. On Feb. 11, 1992, US Pat. No. 4,509,949, 1957 to Huang et al. On Apr. 5, 1985. More fully described in US Pat. No. 2,798,053 to Brown, dated July 2, 1989, which is incorporated herein by reference. The CTFA International Cosmetic Ingredient Dictionary, 4th edit., 1991, pp. 12 and 80.

Commercially available copolymer examples useful herein include copolymers of one or more acrylic acid, methacrylic acid monomers or one of its short chain (eg, C ₁ -C ₄ alcohol) esters with C ₁ -C ₃₀ alkyl acrylates, The crosslinking agent here is allyl ether of sucrose or allyl ether of pentaerythritol. Such copolymers are known as acrylate / C ₁ -C ₃₀ alkyl acrylate crosspolymers and are available from BF Goodrich at Carbopol® 1342, Pemulen TR-1 and Pemulen TR. Marketed as -2.

The polymers are prepared, for example, by polymerizing higher amounts of carboxylic acid monomers and smaller amounts of long chain acrylate ester monomers. The amount of carboxylic acid monomer may range from 50 to 99% by weight, preferably 80 to 99% by weight, especially 90 to 99% by weight, and the amount of acrylate ester is 1 to 50% by weight, preferably 1 to 20% by weight. , In particular, in the range from 2 to 10% by weight. The amount of carboxylic acid monomer and long chain acrylate ester is based on the combined weight of the two components. It is understood that one or more carboxylic acid monomers and one or more long chain acrylate esters may be used.

In addition, the polymer may be crosslinked with an appropriate crosslinking agent in an amount of about 0.1 to 4% by weight, preferably 0.2 to 1% by weight, based on the combined weight of the carboxylic acid monomer and the acrylate ester.

The preparation of the copolymers of the invention utilizes monomer mixtures containing each of the two essential monomer components in specific proportions, one of which is a monomeric carboxylic acid monomer and the other is an acrylic ester having a long chain aliphatic group. Optionally, a crosslinking agent is included in the monomeric mixture.

Copolymers of carboxylic acid monomers with acrylic esters having long chain aliphatic groups range from 0 to 40% by weight, preferably a large proportion of lower C ₁ -C ₄ alkyl esters of polymerized acrylic acid, methacrylic acid or etaacrylic acid, based on the total monomers. May have from 5 to 30% by weight.

Carboxylic acid monomers useful in the preparation of the copolymers of the present invention are olefinically unsaturated carboxylic acids containing one or more activated carbon-to-carbon olefinic double bonds and one or more carboxyl groups, i. It is an acid containing an olefinic double bond that readily functions in the polymerization due to the monomer molecules present as part of the group. It is also possible to use anhydrides, in particular maleic anhydride.

Preferred carboxylic acid monomers for use in the present invention are monoolefinic acrylic acid having formula (1);

[Formula 1]

Wherein R is a hydrogen atom, halogen, hydroxy, lactone, lactam and cyano (-CN) group, monovalent alkyl radical, monovalent aryl radical, monovalent aralkyl radical, monovalent alkaryl radical and monovalent alicyclic radical Substituents selected from the group. Acrylic acid, among other things, is most preferred because it is generally the least expensive, readily available, and can form good polymers. Another particularly preferred carboxylic acid monomer is maleic anhydride.

Preferred acrylic acid ester monomers having long chain aliphatic groups are acrylic acid derivatives represented by the following formula (2);

[Formula 2]

Wherein R ¹ is selected from the group consisting of hydrogen, methyl and ethyl groups; R ² is selected from the group consisting of an alkyl group having 8 to 30 carbon atoms, an oxyalkylene and a carbonyloxyalkylene group, preferably an alkyl group having 10 to 30 carbon atoms, more preferably Alkyl groups having 10 to 22 carbon atoms. The oxyalkylene and carbonyloxyalkylene groups are in particular oxyethylene and carbonyloxyethylene groups. Representative higher alkyl acrylic esters are decyl acrylate, lauryl acrylate, stearyl acrylate, behenyl acrylate and melysyl acrylate and corresponding methacrylates.

The copolymers described herein have a viscosity of 100 to 50,000 cps, preferably 250 to 40,000 cps, especially 500 to 35,000 cps, when tested in the form of 0.2% aqueous viscosities. In the 1.0% aqueous viscous form it has 1,000 to 100,000 cps, preferably 2,000 to 90,000 cps, especially 2,500 to 85,000 cps. These viscosities are measured at about 25 ° C. using a Brookfield RVT model viscometer at a spindle speed of 240 rpm and a range of 7.2 to 7.6 pH. The viscosity of these viscosities is a measure of the molecular weight of the modified polymers described herein, which is characterized by being weakly crosslinked.

When using a crosslinking agent, preferred crosslinking agents are polyalkenyl polyethers having at least one alkenyl ether group per molecule. Most useful crosslinkers include alkenyl groups in which an olefinic double bond is attached to the terminal methylene group (CH ₂ = C). They are prepared by etherification of polyhydric alcohols containing at least 4 carbon atoms and at least 3 hydroxy groups. Compounds of this kind can be prepared by reacting alkenyl halides (such as allyl chloride or allyl bromide) with a strongly alkaline aqueous solution of one or more polyhydric alcohols. The product is a complex mixture of polyethers of varying number of ether groups. This analysis reveals only the average number of ether groups per molecule. The efficacy of polyether crosslinkers increases with the number of potentially polymerizable groups per molecule. Preference is given to using polyethers containing on average two or more alkenyl ether groups per molecule.

The copolymer is preferably prepared by polymerization in an inert diluent which has slightly solubility to at least one monomeric component but essentially no solubility to the resulting polymer. Bulk polymerizations can be carried out but are not preferred because the solid polymer mass obtained is difficult to handle. Polymerization in an aqueous medium containing a water soluble free radical catalyst peroxygen is useful, in which the product is obtained as a granule precipitate or a very swollen gel, all of which can be used directly or are easily further subdivided and dried.

Polymerization in the presence of solvent-soluble catalysts is most preferred in organic liquids or mixtures of these solvents which are solvents for monomers but non-solvents for polymers, which generally results in very fine and easily crushed and often obtained as fluff-like precipitates. This is because there is little need to grind or otherwise process after removal and before use. Suitable solvents of the latter process are benzene, xylene, tetralin, hexane, heptane, carbon tetrachloride, methyl chloride, ethyl chloride, bromo trichloromethane, ethyl acetate, dimethyl carbonate, diethyl carbonate, ethylene dichloride, mixtures thereof, and Other solvents.

The polymerization can also be carried out in an aqueous medium of soluble non-redox reactive polyvalent inorganic salts. The acid is too soluble in pure water, so that the acid is insoluble by the addition of an inorganic salt. In this way, another phase is introduced and the acid is polymerized in suspension rather than in solution.

The aqueous medium can be a concentrated solution or salt slurry of salts. The difference between the two is considerable. The concentrated solution of magnesium sulfate salt at the reaction temperature comprises about 2.5 parts by weight of salt with respect to 1 part by weight of water, while the salt slurry contains about 20 parts by weight of salt with respect to 1 part by weight of water. Preference is given to using a concentrated solution of salt half as the medium.

Magnesium sulfate may be a preferred salt, but other inorganic salts or hydrates thereof, and non-redox-reactive polyvalent ionic salts such as potassium sulfate, calcium chloride, sodium phosphate secondary, and aluminum, barium, beryllium, cadmium, calcium Salts using a combination of anions and cations such as, chloride, chromium, cobalt, lead, magnesium, manganese, molybdenum, nickel, selenate, strontium, sulfate, tin, tungsten and zinc.

The success of this polymerization method depends on whether the polymerization takes place in discrete discrete oil-in-water droplets. Therefore, the water solubility of the inorganic salts used is about 1/2 mole or more to separate the monomers and the resulting water soluble polymer. In addition, easily soluble salts can be easily washed off and removed from the processed polymer.

The polymerization in the dilution medium is carried out in the presence of a free radical catalyst in an inert atmosphere and autogenous or artificially induced pressure in a closed vessel, or in the presence of a free radical catalyst in an open vessel under reflux at atmospheric pressure. The temperature of the polymerization is somewhat dependent on the desired molecular weight in the polymer and can vary from 0 to 100 ° C. Polymerizations using free radical catalysts at atmospheric pressure of 50 to 90 ° C. under reflux are generally effective at generating polymer yields of 75 to 100% within 10 hours.

Suitable polymerization catalysts include peroxygen compounds such as sodium persulfate, potassium persulfate, ammonium persulfate, caprylyl peroxide, benzoyl peroxide, hydrogen peroxide, pelargonil peroxygen source, cumene hydroperoxide, cumene hydroperoxide, 3 Tertiary butyl diperphthalate, tertiary butyl perbenzoate, sodium peracetate and sodium percarbonate and the like and azo diisobutyryl nitrile (hereinafter referred to as azoisobutyronitrile). Other available catalysts include catalysts in the form of so-called redox reactions and heavy metal activated catalyst systems.

In general, copolymers do not have their maximum properties in water until converted to partial alkali, ammonium or amine salts. The neutralizing agent is preferably monovalent alkali such as sodium hydroxide, potassium hydroxide, lithium hydroxide, ammonium hydroxide, sodium carbonate, potassium carbonate, lithium carbonate, ammonium carbonate, sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, ammonium bicarbonate or mixtures thereof, And amine bases having up to one primary or secondary amino group, for example ethanol amine, diethanol amine, triethanol amine, trimethyl amine and the like.

Typical oil-in-water emulsions have a particle diameter of less than 10 microns, preferably 0.1 to 5 microns. It is surprising that oil-in-water emulsions prepared herein using copolymers having larger average particle diameters of about 50 microns range from about 10 to about 100 microns.

Copolymers that may contain a small proportion of long chain acrylate esters can act as primary emulsifiers, but polymers similar to modified polymers but not containing long chain acrylate esters do not have this property. In addition, the emulsion is demulsified upon contact with the skin.

See US Pat. No. 5,004,598, issued to April 2, 1991, which is incorporated herein by reference.

[Non-Emulsifying Cleaning Surfactant]

The composition of the present invention comprises about 0.5 to about 20 weight percent of a non-emulsifying cleaning surfactant selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, and mixtures thereof. %, Preferably from about 0.10 to about 15% by weight, more preferably from about 0.5 to about 10% by weight. Such non-emulsifiable cleaning surfactants are well known to those skilled in the art. Non-emulsifying means that the surfactant does not emulsify the water and oil components in the composition very much, thereby producing an emulsion containing the dispersed particulate phase in the continuous phase. Cleaning means that the surfactant provides a cleaning or purifying benefit. Surfactants with relatively high HLB values are preferred here because of their low ability to act as emulsifiers. In the present invention, a single surfactant or a mixture of surfactants can be used. The weighted average HLB of the HLB of the single surfactant and the surfactant mixture should be greater than about 11, preferably from about 11 to about 18, more preferably from about 12 to about 17. The term HLB is well known to those skilled in the art and refers to a hydrophilic-lipophilic equilibrium, and used herein by reference The HLB Systems. A Time-saving Guide to Emulsifier Selection, ICI Americans Inc., Wilmington, DE, 1984. In addition, preferred surfactants useful herein generally do not contain alkyl substituents having about 15 or more carbon atoms, but such materials can be used when appropriately controlling the overall HLB level of the surfactant component.

Non-limiting examples of surfactants suitable for use in the compositions of the present invention are described in McCutcheon's Detergents and Emulsifiers, North American edition, 1986, Allured Publishing Corporation; McCutcheon's; Fuctional Meterials, North American Edition; US Patent No. 5,151,210, issued to Steuri et al. On September 29, 1992; US Patent Nos. 5,151, 209, issued to McCall et al. On September 29, 1992; US Patent No. 5,120,532 to Wells et al. On June 9, 1992; U.S. Patent No. 5,011,681 to Sigote et al. On April 30, 1991; US Patent No. 4,708,006 to Bolish Jr. et al. On November 29, 1998; US Patent No. 4,741,855 to Grote et al. On May 3, 1998; US Patent No. 4,704,272 to Oh et al. On November 3, 1987; U.S. Patent No. 4,557,853 to Collins, Dec. 10, 1985; U.S. Patent 4,421,769 to Dixon et al. On December 20, 1983; US Pat. No. 3,755,560, issued to Dickert et al. On August 28, 1973, each of which is incorporated herein by reference.

The following are non-limiting examples of surfactants useful herein. It is noted that care should be taken to select surfactants to the extent that the overall HLB requirements of the present invention are met.

Among the nonionic surfactants useful herein are surfactants which can be broadly defined as condensation products with long chain alcohols such as C ₈ -C ₃₀ alcohols and sugars or starch polymers. These compounds can be represented by the formula (S) _n -OR, where S is a sugar moiety such as glucose, fructose, mannose and galactose, n is an integer from about 1 to about 1000, and R is C ₈ -C ₃₀ alkyl group. Examples of long chain alcohols capable of inducing alkyl groups include decyl alcohol, cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol and the like. Preferred examples of these surfactants include surfactants wherein S is a glucose moiety, R is a C ₈ -C ₂₀ alkyl group and n is an integer from about 1 to about 9. Commercially available examples of these surfactants include decyl polyglucoside (commercially available as APG 325 CS from Henkel) and lauryl polyglucoside (commercially available as APG 600 CS to 625 CS from Henkel).

Other useful nonionic surfactants include condensation products of alkylene oxides with fatty acids (eg fatty acid alkylene oxide esters). When using these specific anions, it is desirable to combine them with one or more other surfactants described herein and to use them at low concentrations. These materials have the formula RCO (X) _n OH where R is a C ₁₀ -C ₃₀ alkyl group and X is -OCH ₂ CH _2- (ie derived from ethylene glycol or oxide) or -OCH ₂ CHCH _3- (ie derived from propylene glycol or oxide) and n is an integer from about 1 to about 100. Other nonionic surfactants are condensation products of alkylene oxides with fatty alcohols (ie, alkylene oxide ethers of fatty alcohols). These materials have the formula R (X) _n OR 'wherein R is a C ₁₀ -C ₃₀ alkyl group, X is -OCH ₂ CH _2- (ie from ethylene glycol or oxide) or -OCH ₂ CHCH ₃ -(Ie derived from propylene glycol or oxide), n is an integer from about 1 to about 100. Other nonionic surfactants are condensation products of two or more moles of fatty acids with alkylene oxides (ie fatty acid alkylene oxide diesters). These materials have the formula RCO (X) _n OOCR wherein R is a C ₁ -C ₃₀ alkyl group and X is —OCH ₂ CH ₂ — (ie, derived from ethylene glycol or oxide) or —OCH ₂ CHCH _3- (ie derived from propylene glycol or oxide), n is an integer from about 1 to about 100, and R 'is a hydrogen atom or a C ₁ -C ₃₀ alkyl group. In addition, other nonionic surfactants are condensation products (ie, polyalkylene oxide moieties are esterified on one end with fatty alcohols and on the other end with fatty alcohols) with both alkylene oxides and fatty acids and fatty alcohols. Etherification (ie, linked via ether bonds). These materials have the formula RCO (X) _n OR 'wherein R and R' are C ₁ -C ₃₀ alkyl groups, X is -OCH ₂ CH _2- (ie, derived from ethylene glycol or oxide) or —OCH ₂ CHCH ₃ — (ie, derived from propylene glycol or oxide) and n is an integer from about 1 to about 100. Non-limiting examples of nonionic surfactants derived from these alkylene oxides include cetet-1, cetet-2, cetet-6, cetet-10, cetet-12, ceteare-2, cethea. Let-6, ceteareth-10, ceteareth-12, stearate-1, stearate-2, stearate 6, stearate-10, stearate-12, PEG-2 stearate, PEG-4 stearate Latex, PEG-6 stearate, PEG-10 stearate, PEG-12 stearate, PEG-20 glyceryl stearate, PEG-80 glyceryl tallowate, PPG-glyceryl stearate, PEG-30 glyceryl coco Ate, PEG-30 glyceryl cocoate, PEG-200 glyceryl tallowate, PEG-8 dilaurate, PEG-10 distearate and mixtures thereof.

Other useful nonionic surfactants include polyhydric fatty acid amide surfactants represented by the following formula (3);

[Formula 3]

Wherein R ¹ is a hydrogen atom, C ₁ -C ₄ alkyl, 2-hydroxyethyl, 2-hydroxypropyl, preferably C ₁ -C ₄ alkyl, more preferably methyl or ethyl, most preferably Methyl, R ² is C ₅ -C ₃₁ alkyl or alkenyl, preferably C ₇ -C ₁₉ alkyl or alkenyl, more preferably C ₉ -C ₁₇ alkyl or alkenyl, most preferably C _11- C ₁₅ alkyl or alkenyl, and Z is a polyhydric hydrocarbyl residue or linear alkoxylated (preferably ethoxylated or propoxylated) derivative having a linear hydroxylcarbyl chain to which at least three hydroxy groups are directly linked. Z is preferably a sugar residue selected from the group consisting of glucose, fructose, maltose, lactose, galactose, mannose, xylose and mixtures thereof. Particularly preferred surfactants corresponding to the above formulas are coconut alkyl N-methyl glucoside amides (eg, R ² CO-residues are derived from coconut oil fatty acids). Methods for preparing compositions containing polyvalent fatty acid amides are described in British Patent Application No. 809,060, issued February 18, 1959 by Thomas Hedley Co., Ltd., December 20, 1960. US Patent No. 2,965,576 to E.W. Wilson, dated March 8, 1955, US Patent No. 2,703,798 to AMSchwartz, and December 25, 1934. And described in US Pat. No. 1,985,424 to Piggott, which is incorporated herein by reference.

A wide range of anionic surfactants are useful herein. See US Pat. No. 3.929,678, issued to Laughlin et al. On Dec. 30, 1975, incorporated herein by reference. Non-limiting examples of anionic surfactants include alcohol isethinonates and alkyl and alkyl ether sulfates. Alcoyl isethionates typically have the formula RCO-OCH ₂ CH ₂ SO ₂ M, where R is alkyl or alkenyl having 10 to 30 carbon atoms, M is ammonium, sodium, potassium and triethanol amine It is the same water soluble cation. Non-limiting examples of these isethionates include ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate, sodium stearoyl isethionate, and mixtures thereof.

Alkyl and alkyl ether sulfates typically have the formulas ROSO ₃ M and RO (C ₂ H ₄ O) _X SO ₃ M, respectively, where R is alkyl or alkenyl having 10 to 30 carbon atoms, and x is about 1 to about 10, M is a water soluble cation such as ammonium, sodium, potassium and triethanolamine. Another suitable type of anionic surfactant is the water soluble salt of the organic sulfuric acid reaction product having the formula R ₁ -SO ₃ -M, wherein R ₁ is from 8 to about 24 carbon atoms, preferably from about 10 to about 16 Dog is selected from the group consisting of straight or branched chain saturated aliphatic hydrocarbon radicals, and M is a cation. Other synthetic anionic surfactants include those designated as succinate, olefin sulfonates having about 12 to about 24 carbon atoms, and b-alkyloxy alkanes sulfonates. Examples of such materials are sodium lauryl sulfate and ammonium lauryl sulfate.

Other anionic materials useful herein are fatty acid soaps (ie, alkali metal salts, such as sodium or potassium salts), which typically have about 8 to 24, preferably about 10 to about 20, carbon atoms. Fatty acids used in soap production can be obtained from natural sources such as glycerides derived from plants or animals (eg palm oil, coconut oil, soybean oil, castor oil, tallow, lard and the like). In addition, fatty acids can be prepared synthetically. Soaps are described in more detail in US Pat. No. 4,557, 853, supra.

In addition, although cationic surfactants can be used in the present invention, care must be taken not to complex reaction with the copolymers of the present invention. Such undesired complexing reactions can be prevented by first neutralizing the copolymer with an appropriate base before adding cationic surfactant to the composition. Non-limiting examples of cationic surfactants useful herein include cationic ammonium salts represented by Formula 4:

[Formula 4]

In the above, R ₁ is selected from the group consisting of alkyl groups having about 12 to about 22 carbon atoms, or aromatic, aryl or alkallyl groups having about 12 to 22 carbon atoms, and R ₂ , R ₃ and R ₄ is independently selected from the group consisting of hydrogen atom, alkyl group having about 1 to about 22 carbon atoms, aromatic, aryl or alkaryl group having about 12 to about 22 carbon atoms, X is chloride, bromide , Iodine, acetate, phosphate, nitrate, sulfate, methyl sulfate, ethyl sulfate, tosylate, lactate, citrate, glycolate and mixtures thereof. In addition, the alkyl group may contain ether bonds or hydroxy or amino group substituents (eg, the alkyl group may contain polyethylene glycol and polypropylene glycol moieties).

More preferably, R ₁ is an alkyl group having about 12 to about 22 carbon atoms, R ₂ is selected from the group consisting of a hydrogen atom or an alkyl group having about 1 to about 22 carbon atoms, and R ₃ and R ₄ is independently selected from the group consisting of an alkyl group having from about 1 to about 3 hydrogen atoms or carbon atoms, and X is as described above.

Most preferably, R ₁ is an alkyl group having about 12 to about 22 carbon atoms, and R ₂ , R ₃ and R ₄ are selected from the group consisting of hydrogen atoms or alkyl groups having about 1 to about 3 carbon atoms And X is as described above.

Alternatively, other useful cationic surfactants include amido-amides wherein R ₁ in Formula 4 is optionally R ₅ CO— (CH ₂ ) _n −, wherein R ₅ is about 12 to about 22 carbon atoms Is an alkyl group having a dog, n is an integer from about 2 to about 6, more preferably an integer from about 2 to about 4, most preferably an integer from about 2 to about 3. Non-limiting examples of such cationic emulsifiers include stearamidopropyl PG-dimonium chloride phosphate, stearamidopropyl ethyldimonium ethosulfate, stearamidopropyl dimethyl (myristyl acetate) ammonium chloride, stearamidopropyl dimethyl cesium Tearyl ammonium tosylate, stearamidopropyl dimethyl ammonium chloride, stearamidopropyl dimethyl ammonium lactate and mixtures thereof.

Non-limiting examples of quaternary ammonium salt cationic surfactants include cetyl ammonium chloride, cetyl ammonium bromide, lauryl ammonium chloride, lauryl ammonium bromide, stearyl ammonium chloride, stearyl ammonium bromide, cetyl dimethyl ammonium chloride, cetyl dimethyl ammonium Bromide, lauryl dimethyl ammonium chloride, lauryl dimethyl ammonium bromide, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, lauryl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, stearyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide, lauryl Dimethyl Ammonium Chloride, Stearyl Dimethyl Cetyl Ditallow Dimethyl Ammonium Chloride, Dicetyl Ammonium Chloride, Dicetyl Ammonium Bromide, Dilauryl Cancer Chloride, dilauryl ammonium bromide, distearyl ammonium chloride, distearyl ammonium bromide, dicetyl methyl ammonium chloride, dicetyl methyl ammonium bromide, dilauryl methyl ammonium chloride, dilauryl methyl ammonium bromide, distearyl methyl ammonium chloride Surfactants selected from the group consisting of distearyl dimethyl ammonium chloride, distearyl methyl ammonium bromide and mixtures thereof. Additional quaternary ammonium salts include quaternary ammonium salts in which the C ₁₂ -C ₂₂ alkyl carbon chain is derived from tallow fatty acids or coconut fatty acids. The term tallow refers to an alkyl group derived from tallow fatty acid (usually hydrogenated tallow fatty acid) and generally has an alkyl chain mixture in the C ₁₆ -C ₁₈ range. The term coconut refers to an alkyl group derived from coconut fatty acids and generally has an alkyl chain mixture in the C ₁₂ -C ₁₄ alkyl chain range. Quaternary ammoniums derived from these tallow and coconut sources include, but are not limited to, ditallow ammonium chloride, ditallow dimethyl ammonium methyl sulfate, di (hydrogenated tallow) dimethyl ammonium chloride, di (hydrogenated tallow) dimethyl ammonium acetate, ditallow dipropyl Ammonium Phosphate, Ditlow Dimethyl Ammonium Nitrate, Di (coconutalkyl) dimethyl Ammonium Chloride, Di (coconutalkyl) dimethyl Ammonium Bromide, Tallow Ammonium Chloride, Coconut Ammonium Chloride, Stearamidopropyl PG-Dimonium Chloride Phosphate, Stearyl Amidopropyl Ethyldimonium Ethosulfate, Stearamidopropyl Dimentyl (Mistyl Acetate) Ammonium Chloride, Stearamidopropyl Dimethyl Cetaryl Ammonium Tosylate, Stearamidopropyl Dimethyl Ammonium Chloride, Stearamide And Le amido include propyl dimethyl ammonium lactate, and mixtures thereof.

Examples of amphoteric and zwitterionic surfactants that may be used in the compositions of the present invention include aliphatic radicals that may be straight or branched and one aliphatic substituent is from about 8 to about 22 carbon atoms (preferably, C ₈ -C ₁₈ ) And surfactants described broadly as derivatives of aliphatic secondary and tertiary amines containing water-soluble anionic groups (e.g., carboxy, sulfonate, sulfate, phosphate or phosphonate). Examples include alkyl amino acetates, aminodialkanoates and aminoalkanoates of formula RN [(CH ₂ ) _m CO ₂ M] ₂ and formula RNH (CH ₂ ) _m CO ₂ M, wherein m is 1-4. R is C ₈ -C ₂₂ alkyl or alkenyl and M is a hydrogen atom, an alkali metal ammonium, an alkaline earth metal ammonium or an alkalol ammonium. Also included are imidazolinium and ammonium derivatives. Specific examples of suitable amphoteric surfactants include sodium 3-dodecyl-aminopropionate, sodium 3-dodecylaminopropane sulfonate, N-alkyltaurine (in accordance with the teachings of US Pat. No. 2,658,072, which is incorporated herein by reference). Manufactured by half-dodecyl amine and sodium isethionate), N-higher alkyl aspartic acid (prepared according to the teachings of US Pat. No. 2,438,091, which is incorporated herein by reference), and the product sold under the trade name Miranol As described in US Pat. No. 2,528,378, which is incorporated herein by reference. Other useful amphoteric surfactants include phosphates such as coamidopropyl PG-dimonium chloride phosphate (commercially available as Monaquat PTC from Mona Corp.).

Betaines are also useful herein as amphoteric or zwitterionic surfactants. Examples of betaines include higher alkyl betaines, such as coco dimethyl carboxymethyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl alpha carboxyethyl betaine, cetyl dimethylcarboxymethyl betaine, cetyl dimethyl betaine (Lonza Corporation) (Available as Lonzaine 16SP) from Lonza Corp., lauryl bis- (2-hydroxyethyl) carboxymethyl betaine, stearyl bis- (2-hydroxypropyl) carboxymethyl betaine, oleyl dimethyl gamma -Carboxypropyl betaine, lauryl bis- (2-hydroxypropyl) alphacarboxyethyl betaine, coco dimethyl sulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, lauryl dimethyl sulfo Ethyl betaine, lauryl bis- (2-hydroxyethyl) sulfopropyl betaine, amidobetaine, amido sulfobetaine, wherein the RCONH (CH ₂ ) ₃ radical is attached to the betaine nitrogen atom , Oleyl betaine (available as amphoteric Velvetex OLB-50 in Henkel) and cochamidopropyl betaine (available as amphoteric Velvetex BK-35 BA-35 in Henkel).

Other useful amphoteric and zwitterionic surfactants include sulfanes and hydroxylsultaines, such as, for example, cochamidopropyl hydroxysulfane (commercially available as Mirataine CBS from Rhone-Poulenc), and chemical formulas Alkanoyl sacosinate corresponding to RCON (CH ₃ ) CH ₂ CH ₂ CO ₂ M, wherein R is alkyl or alkenyl having from about 12 to about 20 carbon atoms, M is ammonium, sodium, potassium and Trialkanolamines (eg, water-soluble cations such as triethanolamine), with sodium lauroyl sacosinate as a preferred example.

Non-limiting examples of preferred surfactants for use herein include C ₈ -C ₁₄ glocose amide, C ₈ -C ₁₄ alkyl polyglucosides, sodium lauryl sulfate, sodium lauryl sacosinate, sodium laurate sulfate, ammonium Lauryl sulfate, ammonium laurate sulfate, dilauryl dimethyl ammonium chloride, dimyristyl dimethyl ammonium chloride, sodium lauryl taurate, lauryl betaine, lauryl amide MEA (also known as lauric acid monoethanolamide) , Lauryl DEA (also known as diethanolamide of lauric acid), PEG-8 dilaurate, lauryl dimethyl carboxymethyl betaine, sodium lauryl soap, sodium tallow soap, lauret-3, lau Ret-10, Lauret-20, PEG-6 Dilaurate, Sodium Decetate Sulfate, Sodium Miret Sulfate, Lauroyl Sacosine, Myristyl Betaine and Mixtures thereof Selected from the group consisting of water.

[oil]

The compositions of the present invention are mineral oil, petrolatum, C ₇ -C ₄₀ branched chain hydrocarbons, C ₁ -C ₃₀ carboxylic acid of the C ₁ -C ₃₀ alcohol esters, C ₂ -C ₃₀ dicarboxylic acids of C ₁ -C ₃₀ alcohol esters, C ₁ -C ₃₀ carboxylic acids of monoglycerides, C ₁ -C ₃₀ carboxylic acid of the diglycerides, C ₁ -C ₃₀ carboxylic acid triglycerides, C ₁ -C ₃₀ carboxylic acid of the ethylene glycol monoesters, C ₁ -C ₃₀ carboxylic acids ethylene glycol esters, C ₁ -C ₃₀ carboxylic acids, propylene glycol monoesters, C ₁ -C ₃₀ carboxylic acid of propylene glycol ester, a sugar C ₁ -C ₃₀ carboxylic acid monoesters and polyesters, dialkyl siloxane, poly dia Lee Siloxanes, polyalkoxysiloxanes, cyclomethicones having 3 to 9 silicon atoms, vegetable oils, vegetable curing oils, propylene glycol, polypropylene glycone C ₄ -C ₂₀ alkyl ethers, di C ₈ -C ₃₀ alkyl ethers and Of these Oil is below about 0.5% to about 40% selected from the group consisting of a compound, and preferably from about 1 to about 25%, more preferably from about 2 to about 15%. As noted above, the composition does not contain polymerized 1-alkenes having 10 or more carbon atoms.

Oil materials generally have low solubility in water, generally less than about 1% at 25 ° C. Non-limiting examples of suitable oil components include, but are not limited to: Some of these materials are further described in US Pat. No. 4,919,934, issued to Techner on April 24, 1990, which is incorporated herein by reference.

Mineral oil is also known as petrolatum liquid and mineral oil is a mixture of liquid hydrocarbons obtained from petroleum. The Merck Index, Tenth Edition, Entry 7048, p 1033 (1983), used herein by reference; International Cosmetics Ingredients Dictionary, Fifth Edition, vol. 1, p. 415-417 (1993).

Vaseline, also known as petroleum jelly, is a colloidal system of non-chain solid hydrocarbons, and high-boiling liquid hydrocarbons, most of which are fixed to colloidal particles. As used herein by reference, The Merck Index, Entry 7047, p. 1033 (1933); Schindler, Drug, cosmet, Ind., 89, 36-37, 76. 78-80, 82 (1961); And International Cosmetic Ingredient Dictionary, Fifth Edition, vol. 1, p. 537 (1993).

Useful herein are straight and branched chain hydrocarbons having about 7 to about 40 carbon atoms. Non-limiting examples of such hydrocarbon materials include dodecane, isododecane, squalane, cholesterol, hydrogenated polyisobutylene, docoic acid (ie, C ₂₂ hydrocarbons), hexadecane, isohexadecane (press in South Plainfield, NJ) Hydrocarbons sold under the trade name Permethyl® in Presperse. Also useful are C ₇ -C ₄₀ isoparaffins, which are C ₇ -C ₄₀ branched chain hydrocarbons.

Useful oils include linear, branched and material, as well as aromatic derivatives of C ₁ -C ₃₀ carboxylic acid C ₁ -C ₃₀ alcohol esters and C ₂ -C ₃₀ dicarboxylic acids of C ₁ -C ₃₀ alcohol esters. In addition, C ₁ -C ₃₀ carboxylic acids of monoglycerides, C ₁ -C ₃₀ carboxylic acid of the diglycerides, triglycerides of C ₁ -C ₃₀ carboxylic acid triglyceride, C ₁ -C ₃₀ carboxylic acid of ethylene glycol monoesters, C ₁ -C an ester such as _{30-carboxylic} acid ester of ethylene glycol, C ₁ -C ₃₀ carboxylic acids, propylene glycol monoesters and C ₁ -C ₃₀ carboxylic acids, propylene glycol diesters useful. Straight chain, branched and aryl carboxylic acids are included here. Also useful are propoxylated and ethoxylated derivatives of these materials. Non-limiting examples include diisopropyl sebacate, diisopropyl adipate, isopropyl myristate, isopropyl palmitate, myristyl propionate, ethylene glycol distearate, 2-ethyl hexyl palate, isodecyl neopenta Noate, C ₁₂ -C ₁₅ alcohol benzoate, di-2-ethylhexyl malate, cetyl palmitate, myristyl myristate, stearyl stearate, cetyl stearate, behenyl behenate, dioctyl malate, di Octyl sebacate, diisopropyl adipate, cetyl octanoate, diisopropyl dilinoleate, capryl / capri triglyceride, PEG-7 capryl / capri triglyceride, PEG-8 capryl / capri triglyceride and Mixtures thereof.

Also useful are C ₁ -C ₃₀ monoesters of various sugars, polyesters of sugars and related materials. These esters are derived from sugar or polyol residues and one or more carboxylic acid residues. Depending on the constituent acids and sugars, these esters may be in liquid or solid form at room temperature. Examples of liquid esters include glocose tetraoleate, soybean oil fatty acid (unsaturated) glucose tetraester, mixed soybean oil fatty acid mannose tetraester, oleic acid galactose tetraester, linoleic acid arabinose tetraester, xylose tetralinoleate, galactose pentaol Rate, sorbitol tetraoleate, unsaturated soybean oil fatty acid sorbitol hexaester, xylitol pentaoleate, sucrose tetraoleate, sucrose pentaoleate, sucrose hexaoleate, sucrose heptolalate, sucrose octaoleate And mixtures thereof. Examples of solid esters include sorbitol hesa esters (carboxylic acid ester residues are palmitolate and arachidate in a 1: 2 molar ratio), raffinose octaesters (carboxylic acid ester residues are linoleate and behenate in a 1: 3 molar ratio), Tods heptaester (esterification of carboxylic acid residues results in a 3: 4 molar ratio of sunflower seed oil fatty acid and lignoserate), sucrose octaester (esterification of carboxylic acid residues results in a 2: 6 molar ratio of oleate and behenate ) And sucrose octaesters (esterifying carboxylic acid moieties are 1: 3: 4 molar ratios of laurate, linoleate and behenate). Preferred solid materials are sucrose polyesters having a degree of esterification of 7 to 8 and fatty acid residues present in a molar ratio of C ₁₈ mono and / or di-unsaturated sucrose polyesters and behenic acid 1: 7 to 3: 5. Particularly preferred solid sugar polyesters are sucrose octaesters having about 7 Behen fatty acid residues and about 1 oleic acid residues in the molecule. The ester materials are described in US Pat. No. 2,831,854, issued Jan. 25, 1977 to US Pat. No. 4,005,196, US Pat. No. 4,005,195, 1994 issued January 25, 1997. U.S. Patent No. 5,306,516, issued to Jan. Leton et al. On April 26, 1994; U.S. Patent No. 5,305,514, issued to Leton et al. On April 26, 1994; Patent 4,797,300, US Patent No. 3,963,699, issued to Rizzi et al. On January 15, 1976, US Patent No. 4,518,722, issued to Volpenhein on May 21, 1985, and 5, 1985. US Patent No. 4,517,360 to Ballpenhain, dated May 21, which is incorporated herein by reference.

Silicones such as polydialkylsiloxanes, polydiarylsiloxanes, polyalkarylsiloxanes, and cyclomethicones containing 3 to 9 silicon atoms are useful oils. These silicones include both volatile and nonvolatile materials. These silicones are described in US Pat. No. 5,069,897, issued to Orr on December 3, 1991, which is incorporated herein by reference. Polyalkylsiloxanes include, for example, polyalkylsiloxanes having a viscosity of about 0.5 to about 100,000 centistrox at 25 ° C. Such polyalkylsiloxanes correspond to the general formula R ₃ SiO [R ₂ SiO] _x SiR ₃ , where R is an alkyl group (preferably R is methyl or ethyl, more preferably methyl) and x is 0 Is an integer from about 500 and selected to obtain the desired molecular weight. Commercially available polyalkylsiloxanes include polydimethylsiloxanes, also known as dimethicones, and non-limiting examples of these are the Vicasil® series and Dow Corning Corporation (General Electric Company). Dow Corning® 200 series available from Down Corning Corporation. Specific examples of polydimethylsiloxanes useful as emollients herein include Dow Corning® 200 fluid having a 0.65 centistrox viscosity and a 100 ° C. boiling point, Dow Corning® 225 fluid having a 10 centistrox viscosity and a boiling point above 200 ° C. And Dow Corning® 200 fluid having a boiling point of at least 200 ° C. and a viscosity of 50,350 centistokes and 12,500 centistokes, respectively. Cyclic polyalkylsiloxanes useful herein include cyclic polyalkylsiloxanes corresponding to the general formula [SiR ₂ -O] _n , wherein R is an alkyl group (preferably R is methyl or ethyl, more preferably Methyl, and n is an integer from about 3 to about 9, more preferably an integer from about 3 to about 7, and most preferably an integer from about 4 to about 6. If R is methyl, these materials are typically referred to as cyclomethicone. Commercially available cyclomethicones have Dow Corning® 244 fluid, 2.5 centistwidth viscosities, and 178, mainly comprising cyclomethicone tetramers (i.e., n = 4) if they have a 2.5 centistrol viscosity and a 172 ° C. boiling point. Dow Corning® 344 fluid, which has a boiling point and mainly contains cyclomethicone conjugates (i.e., n = 5), has 4.2 centistrol viscosity and 205 ° C boiling point and cyclomethicone tetramers and conjugates (i.e. , Dow Corning® 245 fluid containing a mixture of n = 4 and 5, and having a 4.5 centistrol viscosity and a 217 ° C. boiling point and cyclomethicone tetramer, pentomer and hexamer (ie n = 4 Dow Corning® 345 fluid containing predominantly a mixture of 5 and 6). Also useful are materials such as trimethyl siloxysilicate, a polymeric material corresponding to the general formula [(CH ₂ ) ₃ SiO _1/2 ] _x [SiO ₂ ] _y , where x is an integer from about 1 to about 500 And y is an integer from about 1 to about 500. Commercially available trimethylsiloxysilicate is commercially available as a Dow Corning® 593 fluid in admixture with dimethicone. Dimethicone, which is a hydroxy terminated dimethyl silicone, is useful herein. These materials can be represented by the general formulas R ₃ SiO [R ₂ SiO] _x SiR ₂ OH and HOR ₂ SiO [R ₂ SiO] _x SiR ₂ OH, where R is an alkyl group (preferably R is methyl or ethyl) , More preferably methyl), x is an integer from 0 to about 500 and selected to obtain the desired molecular weight. Commercially available dimethiconols are typically sold as mixtures with dimethicone or cyclomethicone (eg Dow Corning® 1401, 1402 and 1403 fluids). Polyalkylaryl siloxanes are also useful herein, with polymethylphenyl siloxanes having a viscosity of about 15 to about 65 centistrol at 25 ° C. are preferred. These materials are available, for example, as SF 1075 methylphenyl fluids (available from General Electric Company) and 556 Cosmetic Grade phenyl trimethicone fluids (available from Dow Coating Corporation).

Also useful herein are vegetable oils and vegetable cured oils. Examples of vegetable oils and vegetable hardening oils include safflower oil, castor oil, coconut oil, cottonseed oil, herring oil, citron seed oil, citron oil, peanut oil, soybean oil, rapeseed oil, flaxseed oil, rice bran oil, pine oil, sesame oil, Sunflower Seed Oil, Safflower Cured Oil, Castor Cured Oil, Coconut Cured Oil, Cottonseed Cured Oil, Herring Cured Oil, Citron Seed Cured Oil, Citron Cured Oil, Peanut Cured Oil, Soybean Cured Oil, Flaxseed Cured Oil, Rapeseed Cured Oil, Rice Bran Cured Oil, Sesame Oil Cured Oil, Sunflower Seed Cured Oil And mixtures thereof.

Also useful are polypropylene glycol, C ₄ -C ₂₀ alkyl ethers of polypropylene glycol, C ₁ -C ₂₀ carboxylic acid esters of polypropylene glycol and di-C ₈ -C ₃₀ alkyl ethers. Non-limiting examples of these materials include PPG-14 butyl ether, PPG-15 stearyl ether, PPG-9, PPG-12, PPG-15, PPG-17, PPG-20, PPG-26, PPG-30, PPG-34 dioctyl ether, dodecyl octyl ether, and mixtures thereof.

[water]

The composition of the present invention comprises about 20 to about 99.44%, more preferably about 50 to about 95%, most preferably about 70 to about 90% of water. The exact amount of water depends on the product form and the desired moisture content.

[Additional Ingredients]

The composition of the present invention may include a wide range of additional components. However, care should be taken not to add ingredients that would prematurely destroy the emulsion during storage. The CIFA Cosmetic Ingredient Handbook, Second Edition, 1992, incorporated herein by reference, provides a broad and non-limiting list of cosmetic and pharmaceutical ingredients suitable for use in the compositions of the present invention and commonly used in the skin care industry. Is started. Non-limiting examples of functionally classified components are disclosed on page 537 of this document. Examples of these functional classes include absorbents, abrasives, acne inhibitors, dispersants, antifoams, fungicides, antioxidants, binders, biological additives, buffers, swelling agents, chelating agents, chemical additives, colorants, cosmetic astringents, cosmetic fungicides, denaturants , Astringents, external analgesics, membrane formers, fragrances, moisturizers, milk whitening agents, ph modifiers, plasticizers, preservatives, propellants, reducing agents, skin bleaches, skin-controlling agents (emollients, humectants, other and blocking agents), skin protectants, solvents Foaming boosters, hydrotropes, solubilizers, suspending agents), suspending agents (nonsurfactants), sunscreens, ultraviolet absorbers and viscosity enhancers (aqueous and non-aqueous). Other possible classes of materials which are generally well known to those skilled in the art and useful herein include solubilizers, separators, keratin solubilizers and the like. In addition, the emulsifying surfactant can be used herein only if a small amount of emulsifying surfactant is added in a manner that prevents overemulsification of the formulation and does not result in rapid breakdown and demulsification properties of the composition.

Non-limiting examples of the additional ingredients described herein and in the CIFA Cosmetic Ingredient Handbook that are useful herein include vitamins and their derivatives (eg, vitamin C, vitamin A (retinoic acid), retinol and retinoids, etc.); Sunscreens such as other silicone materials such as dimethiconol, dimethicone copolyol and amodimethicone and the like; Antioxidants; disinfectant; antiseptic; Emulsifiers; Polyethylene glycol and polypropylene glycol; Polymers to assist in film-forming properties and substitutes for such compositions (e.g., copolymers of eicosene and vinyl pyrrolidone, available as Ganex® V-220 from GAF Chemical Corporation) ); Preservatives to maintain sterile preservatives of the composition; Skin bleaching (whitening) agents, including but not limited to anti-acne medications (eg, resorcinol, sulfur, salicylic acid, erythromycin and zinc), hydroquinone, kojic acid; Antioxidants; Chelating and separating agents; Thickeners, crosslinked or uncrosslinked anionic and cationic polyacrylamides (e.g., CTFA designated polyquad) such as carbomers (homopolymers of acrylic acid crosslinked with allyl ethers of pentaerythritol allyl ether or sucrose) Salcare® SC 92 with ternium 32 (and) mineral oil, and Salcare® SC 95 with CTFA designated polyquaternium 37 (and) mineral oil PPG-1 Trideset-6, and Sepi Corporation Nonionic Seppi-gel polyacrylamides available from Cor.); Aesthetic ingredients such as anti-oils, pigments, colorants, essence oils, skin senates, astringents, skin soothing agents and skin healing agents (non-limiting examples of these aesthetic ingredients include clove oil, menthol, camphor, eucalyptus oil, eugenol, mentyl lactate) Tate, wit hazel distillate, bisabopol and dipotassium glycidine hydrate, and the like); Skin control agents such as urea and glycerol, and the propoxylated glycerol described in US Pat. No. 4,976,953 to Ord et al. On December 11, 1990, which is incorporated herein by reference.

Some of these additional components are described in more detail below.

[Sun blocker]

The composition of the present invention may comprise one or more sunscreens. When sunscreen agents are used, it has been found that the compositions of the present invention are useful for protecting human skin from the deleterious effects of ultraviolet light.

The sunscreen may comprise from about 0.1 to about 30%, more preferably from about 0.5 to about 25%, most preferably from about 1 to about 20% of the composition. The exact amount of sunscreen may vary depending on the sunscreen (s) selected and the sunscreen index (SPF) to be achieved. SPF is a commonly used measure to indicate photoprotection of sun protection against erythema. SPF is defined as the ratio of the ultraviolet energy required to produce minimal erythema on protected skin to the same person versus the ultraviolet energy required to generate minimal erythema on unprotected skin. As used herein by reference, Federal Regisge, Vol. 43, No. 166, pp 38206-38269, August 25, 1978.

A wide range of sunscreens are useful herein. These sunscreens include organic compounds and their salts and inorganic particulate matter. Without wishing to be bound by theory, it is known that sunscreens provide protection from ultraviolet light by one or more of the above mechanisms, including absorption, scattering and reflection of ultraviolet light. Non-limiting examples of these sunscreens are U.S. Patent 5,087,445 to Happy on February 11, 1992, U.S. Patent 5,073,372 to Turner et al. On December 17, 1991, December 1991 US Patent No. 5,073,371 to Turner et al., Dated 17, US Patent No. 5,160,731 to Sabatelli et al., August 11, 1992, Sebatelli to August 11, 1992. U.S. Patent No. 5,138,089, U.S. Patent No. 5,041,282 to Sebatelli on August 20, 1991, U.S. Patent No. 4,999,186 to Sebatelli et al. On March 12, 1991, June 26, 1990 US Pat. No. 4,937,370, issued to Sebatelli, and Cosmetics Science and Technology, Segarin et al., See Chapter vIII, pages 189 and below, which is incorporated herein by reference. 2-ethylhexyl p-methoxycinnamate, octylsalicylate, octocrylene, oxybenzone, 2-ethylhexyl, N, N-dimethylaminobenzoate, p-aminobenzoic acid, 2-phenylbenzimi in sunscreen Dazole-5-sulfonic acid, homomentyl salicylate, DEA p-methoxycinnamate, 4,4'-methoxy-tert-butyldibenzoylmethane, 4-isopropyldibenzoylmethane, 3- (4- Methylbenzylidene) camphor, 3-benzylidene camphor, 4-N, N-dimethylaminobenzoic acid ester with 2,4-dihydroxybenzophenone, 2-hydroxy-4- (2-hydroxyethoxy) benzo 4-n, n-dimethylaminobenzoic acid with phenol, 4-N, N-dimethylaminobenzoic acid ester with 4-hydroxydibenzoyl methane, 4- with 4- (2-hydroxyethoxy) dibenzoylmethane N, N-dimethylaminobenzoic acid ester, 4-N, N-di (2-ethylhexyl) aminobenzoic acid ester with 2,4-dihydroxybenzophenone, 2-hydroxy-4- (2-hydroxye With methoxy) benzophenone 4-N, N-di (2-ethylhexyl) aminobenzoic acid, 4-N, N-di (2-ethylhexyl) aminobenzoic acid ester with 4-hydroxydibenzoylmethane, 4- (2-hydroxye 4-N, N-di (2-ethylhexyl) methylaminobenzoic acid with oxy) dibenzoylmethane, 4-N, N- (2-ethylhexyl) methylaminobenzoic acid with 2,4-dihydroxybenzophenone Ester, 4-N, N- (2-ethylhexyl) methylaminobenzoic acid ester with 2-hydroxy-4- (2-hydroxyethoxy) benzophenone, 4-N with 4-hydroxydibenzoylmethane , N- (2-ethylhexyl) methylaminobenzoic acid ester, 4-N, N- (2-ethylhexyl) methylaminobenzoic acid ester with 4- (2-hydroxyethoxy) dibenzoylmethane, titanium dioxide, iron Preference is given to sunscreens selected from the group consisting of oxides, zinc oxides and mixtures thereof.

2-ethylhexyl N, N-dimethyl-p-aminobenzoate, 2-ethylhexyl p-methoxycinnamate, octocrylene, octyl salicylate, homomentyl salicylate, p-aminobenzoic acid, oxybenzone, 2-phenylbenzimidazole-5-sulfonic acid, DEA p-methoxycinnamate, 4,4'-methoxy-tert-butyldibenzoylmethane, 4-isopropyl dibenzoylmethane, 3- (4-methyl Benzylidene) camphor, 3-benzylidene camphor, 4-N, N- (2-ethylhexyl) methylaminobenzoic acid ester with 4- (2-hydroxyethoxy) dibenzomethane, titanium dioxide, iron oxide, zinc Sunscreens selected from the group consisting of oxides and mixtures thereof are more preferred for use in the compositions described herein.

2-ethylhexyl N, N-dimethyl-p-aminobenzoate, 2-ethylhexyl p-methoxycinnamate, octocrylene, octyl salicylate, oxybenzone, 2-phenylbenzimidazole-5-sulfonic acid 4 with 4,4'-methoxy-tert-butyldibenzoylmethane, 3- (4-methylbenzylidene) campo, 3-benzylidene camphor, 4- (2-hydroxyethoxy) dibenzoylmethane Most preferred for use in the compositions described herein are sunscreens selected from the group consisting of -N, N- (2-ethylhexyl) methylaminobenzoic acid esters, titanium dioxide, iron oxides, zinc oxides and mixtures thereof.

[Moisturizer and Humidifier]

In addition, the compositions of the present invention may contain one or more humectants or humidifiers. Such various materials may be used and may be present in amounts of about 0.1 to about 20%, more preferably about 0.5 to about 10%, and most preferably about 1 to about 5% of each. These materials include guanidine, glycolic acid and glycolate salts (eg ammonium and quaternary alkyl ammonium); Lactic acid and lactate salts (eg, ammonium and quaternary alkyl ammonium); Any type of aloe vera (eg, aloe vera gel); Polyhydric alcohols (eg sorbitol, glycerol, hexanetriol, propylene glycol, butylene glycol, hexylene glycol, etc.); Polyethylene glycol; Sugar and starch, sugar and starch derivatives (eg alkoxylated glucose) 'hyaluronic acid; Lactamide monoethanolamine; Acetamide monoethanolamine and mixtures thereof.

Also useful are the propoxy and glycerol described in US Pat. No. 4,976,953, issued to Ord et al. On December 11, 1990, which is incorporated herein by reference. Glycerol is a particularly preferred material for use herein.

[Individual washing method]

The compositions of the present invention are useful for personal cleansing, especially for facial and neck cleansing. Typically, the applied amount or effective amount of the cleaning composition is applied to the site to be cleaned. Alternatively, an appropriate amount of the cleaning composition can be applied by intermediate application to a towel, sponge, pad, cotton ball or other application device. If necessary, water can be added to the site to be cleaned in advance with water. The composition of the present invention is rinsed from the skin in combination with water during the cleaning process. Alternatively, the product can be used alone and wiped from the skin using pads, cotton balls, tissues or other similar devices. The cleaning process is typically a two-step process comprising applying a product followed by rinsing with water or wiping without using water. In general, the effective amount of the product to be used depends on the individual's needs or habits of use. Typical amounts of the compositions of the invention useful for cleaning range from about 0.5 to about 25 mg per cm 2 of skin area to be cleaned.

The following examples further illustrate and demonstrate aspects within the scope of the present invention. The above embodiments are provided for purposes of illustration only, and do not limit the invention, and many modifications may be made without departing from the spirit and scope of the invention.

The component is represented by the compound name or CTFA name.

Example 1

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

C phase

Sodium Hydroxide ³ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glocose amide0.96

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing, added to the emulsion, and cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion is demulsified in contact with the skin.

Alternatively, an overcontrol detergent was prepared by increasing glycerin to 7% and correspondingly decreasing the water content.

Alternatively, isohexadecane was replaced with an equivalent amount of isododecane.

Example 2

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.25

Stearate-210.50

C phase

Sodium Hydroxide ³ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane2.00

Mineral oil ⁴ 5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glocose amide0.96

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

⁴ Available as Drakeol 5 from Penreco, Dickenson, Texas.

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion, then cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion is demulsified in contact with the skin.

Alternatively, an overcontrol detergent was prepared by increasing glycerin by 7% and correspondingly decreasing the water content.

Alternatively, isohexadecane was replaced with an equivalent amount of isododecane.

Example 3

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.25

Stearate-210.50

C phase

Sodium Hydroxide ³ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane2.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glucose Amide0.96

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion, then cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion demulsifies when it comes into contact with the skin.

Alternatively, an overcontrol detergent is prepared by increasing glycerin by 7% and correspondingly decreasing the water content.

Alternatively, isohexadecane was replaced with an equivalent amount of isododecane.

Example 4

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.10

Stearate-210.10

C phase

Sodium Hydroxide ³ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glucose Amide0.96

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion, then cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion is demulsified in contact with the skin.

Example 5

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.25

Stearate-210.50

C phase

Sodium Hydroxide ³ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Decyl polyglucose ⁴ 0.96

Lauric acid0.10

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

⁴ Marketed by Henkel Corporation under Plantaren®.

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion, then cooled to room temperature.

The resulting cleaning composition is useful for cleaning the skin. The emulsion demulsifies when it comes into contact with the skin.

Example 6

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.25

Stearate-210.50

C phase

Sodium Hydroxide ³ 0.130

D phase

Dioctyl Maleate1.50

Isohexadecane5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glocose amide0.96

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion, then cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion is demulsified in contact with the skin.

Example 7

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques. This composition utilizes a mixture of silicone materials to provide improved hand feel.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.25

Stearate-210.50

C phase

Sodium Hydroxide ³ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glucose Amide0.96

G phase

Cyclomethicone ⁴ 1.22

Cyclomethicone and Dimethicone ⁵ 0.58

Cyclomethicone and Dimethicone Copolyol ⁶ 0.58

Dimethicone Copolyol ⁷ 0.12

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

³ 50% aqueous solution

⁴ available as Dow Corning 245 fluid.

⁵ available as Dow Corning 1401 fluid.

⁶ available as Dow Corning 3225C fluid.

⁷ Dow Corning 193 available as a fluid.

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion. Then, phase G was combined under stirring and an emulsion was cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion is demulsified in contact with the skin.

Example 8

Personal cleansing compositions were prepared by combining the following ingredients using conventional mixing techniques. This composition utilizes a sucrose polyester mixture to provide improved hand and moisture supply.

Ingredient weight%

A phase

Sufficient water to make 100

Disodium EDTA0.100

Glycerin4.00

Methylparaben0.200

Acrylate / C ₁₀ -C ₃₀ Alkyl Acrylate Crosspolymer ¹ 0.150

Carbomer 954² 0.250

B phase

Stearic Acid0.110

Stearyl Alcohol0.875

Cetyl Alcohol0.875

Propylparaben0.150

Stearate-20.25

Stearate-210.50

Liquid Sucrose Polyester ³ 2.78

Solid Sucrose Polyester ⁴ 0.22

C phase

Sodium hydroxide ⁵ 0.130

D phase

Diisopropyl Sebacate1.50

Isohexadecane5.00

E phase

Phenoxyethanol0.50

Balm0.150

F phase

Glucose Amide0.96

¹ Available as Pemulen (R) TR-1 from B.F. Goodrich Corporation.

² Carbomer® 954 available from B.F. Goodrich Corporation.

Mixed liquid of ³ hexa-, hepta- and oxa-sucrose esters, mainly octa-esters esterified using mixed soybean oil fatty acids

⁴ solid sucrose octaester esterified with 1 oleic acid and 7 behenic acid residues

⁵ 50% aqueous solution

In a suitable vessel, the Phase A ingredients are mixed at room temperature to form a dispersion and heated to 70-80 ° C. under stirring. In a separate vessel, the phase B component was heated to 70-80 ° C. under stirring. Then, phase B was added to phase A under mixing to produce an emulsion. Phase C was then added to neutralize the composition. The D phase component was added under mixing and then cooled to 45-50 ° C. The E phase component was then added under stirring and then cooled to 40 ° C. The F phase was heated to 40 ° C. under mixing and added to the emulsion, then cooled to room temperature.

The resulting cleaning composition is useful for skin cleaning. The emulsion is demulsified in contact with the skin.

Example 9

Using the model system of 10 parts by weight of water and mineral oil, the production experiment of the next emulsion was conducted.

Eight samples with the indicated compositions were prepared:

Beaker 1: 10 mineral oil ¹ part by weight of water and 90 parts by weight

Beaker 2: 10 mineral oil ¹ part by weight, water 88 parts by weight and 2 parts by weight glucose amide

Beaker 3: 10 mineral oil ¹ part by weight, water 88 parts by weight and 2 parts by weight decyl poly glucose

Beaker 4: 10 parts by weight of mineral oil, 88 parts by weight of water, ¹ part by weight of stearate-2 and 21 parts by weight of stearate-

Beaker 5: 10 mineral oil ¹ part by weight water 89.735 parts by weight of acrylate / C ₁ -C ₃₀ alkyl acrylate cross-linked polymer ² and 0.2 part by weight of a 50% aqueous solution of sodium hydroxide 0.065 parts by weight

Beaker 6: 10 mineral oil ¹ part by weight water 89.735 parts by weight of acrylate / C ₁ -C ₃₀ alkyl acrylate cross-linked polymer ² 0.2 parts by weight of a 50% aqueous solution of sodium hydroxide 0.065 parts by weight and 2 parts by weight glucose amide

Beaker 7: 10 mineral oil ¹ part by weight water 89.735 parts by weight of acrylate / C ₁₀ -C ₃₀ alkyl acrylate cross-linked polymer ² 0.2 parts by weight, 50% sodium hydroxide solution and 0.065 parts by weight of a poly-decyl glucose and 2 parts by weight

Beaker 8: 10 mineral oil ¹ part by weight water 89.735 parts by weight of acrylate / C ₁₀ -C ₃₀ alkyl acrylate cross-linked polymer ² and 0.2 part by weight of a 50% aqueous solution of sodium hydroxide 0.065 parts by weight, 1 part by weight of stearoyl stearate -2 Rate-21 1 part by weight

¹ Light mineral oil sold by Drakeol 5 at Penreco, Dickinson, Texas

^{2 b} . F. Goodrich Corporation sold as Pemulen® TR-1

The contents of beaker 1 were vigorously stirred using an overhead mixer for about 30 seconds.

For Beakers 2 to 4, water and surfactant were combined and heated to 70 ° C. The mineral oil was heated separately to 70 ° C. and then added to the water phase. The mixture of oil and water was stirred vigorously in an overhead mixer for about 30 seconds.

For beakers 5-8, water, acrylate / C ₁₀ -C ₃₀ alkyl acrylate crosspolymers (beakers 6-8) were combined and heated to 70 ° C. The mineral oil was separately heated to 70 ° C. and then added to the water phase. The mixture of oil and water was stirred vigorously in an overhead mixer for about 30 seconds. Then an aqueous sodium hydroxide solution was added under mixing to neutralize the crosslinked polymer.

After being left for about 6 hours, each beaker was visually observed to see if there was one or two phases. One phase indicates that emulsification has occurred, while two phases indicate no emulsification. The following table shows the results.

In the case where both the copolymer and the surfactant are not present (beaker 1), two phases appear after mixing, so that no emulsion is formed, as can be seen. The results from Beakers 2 and 3, ie the two phases remaining after mixing, indicate that surfactants such as glucose amide and decyl polyglucose are non-emulsifiable surfactants. The results from Beaker 4 indicate that the 1: 1 combination of stearate-2 and stearate-21 is an emulsifying surfactant. Acrylate / C ₁ -C ₃₀ alkyl acrylate crosspolymers are used either alone (beaker 5) or in combination with a surfactant system (beakers 6-8) when neutralized with a suitable base such as sodium hydroxide to emulsifier Acts as.

The results indicate that the acrylate / C ₁ -C ₃₀ alkyl acrylate crosspolymers can emulsify simple oils such as mineral oils and that the surfactants can be emulsifying or non-emulsifying surfactants.

Claims (10)

(a) acrylic acid, salts of acrylic acid, C ₁ -C ₄ alkyl-substituted acrylic acid, C ₁ -C ₄ alkyl-salts, acrylic acid, substituted acrylic acid C ₁ -C ₄ alkyl esters, C ₁ -C ₄ alkyl- C ₁ -C ₄ alkyl esters of substituted acrylic acid, monomers selected from the group consisting of maleic anhydride and mixtures thereof, and C ₁₀ -C ₃₀ alkyl esters of acrylic acid, C ₁₀ of C ₁ -C ₄ alkyl-substituted acrylic acid About 0.01 to about 5 weight percent of a copolymer comprising a monomer selected from the group consisting of -C ₃₀ alkyl esters and mixtures thereof, (b) 0.05 to about 20 weight percent of a non-emulsifiable cleaning surfactant having a hydrophilic-lipophilic equilibrium value (HLB) of greater than 11, (c) mineral oil, petrolatum, C ₇ -C ₄₀ branched chain hydrocarbons, C ₁ -C ₃₀ carboxylic acid of the C ₁ -C ₃₀ alcohol esters, C ₁ -C ₃₀ carboxylic acid of monoglycerides, C ₁ -C ₃₀ carboxylic acid di glycerides, C ₁ -C ₃₀ carboxylic acid of triglyceride, C ₁ -C ₃₀ carboxylic acid of ethylene glycol monoesters, C ₁ -C ₃₀ carboxylic acid esters of ethylene glycol, C ₁ -C ₃₀ carboxylic acids, propylene glycol monoesters, C ₁ -C ₃₀ carboxylic acids, propylene glycol diesters, C ₁ -C ₃₀ carboxylate, C ₁ -C ₃₀ carboxylic acid polyester, dialkyl siloxane, poly diaryl siloxane, polymethyl methacrylate Al per each of siloxane, 3 to 9 Cyclomethicone, vegetable oil, hydrogenated vegetable oil, polypropylene glycol, polypropylene glycol C ₄ -C ₂₀ alkyl ether, propylene glycol C ₁ -C ₂₀ carboxylic acid ester, di-C ₈ -C ₃₀ alkyl ether And Oil is below about 0.5 to about 40% by weight, selected from the group consisting of a mixture of, and (d) from about 20 to about 99.44 weight percent of water, A personal cleansing composition which does not contain 1-alkene having 10 or more carbon atoms and is in the form of an oil-in-water emulsion. The method of claim 1, A composition having a feature of demulsifying when the emulsion is in contact with human skin. The method of claim 2, The copolymer is a crosslinking agent, preferably a crosslinking agent which is a polyalkenyl polyether of a polyhydric alcohol containing at least 3 carbon atoms and at least 3 hydroxy groups, more preferably allyl ether of sucrose, allyl of pentaerythritol And a crosslinking agent selected from the group consisting of ethers and mixtures thereof. The method of claim 3, wherein Wherein said copolymer is an acrylate / C ₁₀ -C ₃₀ alkyl acrylate crosspolymer. The method of claim 4, wherein The non-emulsifying detergent is selected from the group consisting of cationic surfactants, anionic surfactants, nonionic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof; Preferably C ₈ -C ₁₄ glocose amide, C ₈ -C ₁₄ alkyl polyglucoside, sodium lauryl sulfate, sodium lauryl sacosinate, sodium laurate sulfate, ammonium lauryl sulfate, ammonium laurate sulfate, sodium lauryl taurate , Lauryl betaine, lauryl MEA, lauryl DEA, PEG-8 dilaurate, lauryl dimethyl carboxymethyl betaine, sodium lauryl soap, sodium tallow soap, lauret-3, lauret-10 , Laureth-20, PEG-6 dilaurate, sodium decetate sulfate, sodium miret sulfate, lauroyl sacosine, myristyl betaine, and mixtures thereof. The method of claim 5, The oil is selected from the group consisting of mineral oil, petrolatum and mixtures thereof. The method of claim 5, The oil is selected from the group consisting of C ₇ -C ₄₀ straight or branched chain hydrocarbons and mixtures thereof; Preferably isodecane, isohexadecane and mixtures thereof. The method according to any one of claims 1 to 9, A composition selected from the group consisting of a rinse-off composition and a wipe-0ff composition. (1) applying to the skin 0.5 to 25 mg / cm 2 of the composition according to any one of claims 1 to 7, and (2) rinsing the composition from the skin. A skin cleaning method comprising the steps of: (1) applying 0.5 to 25 mg / cm 2 of the composition according to any one of claims 1 to 7 to the skin, and (2) wiping the composition from the skin.